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Fault board says pressure switch lockout on my heat pump condenser

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Either your system is pretty old and uses a air pressure switch to determine time for defrost or, you have a system that might be using a pressure transducer. To know for sure we need the model number & brand of equipment.

Posted on Nov 02, 2010

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1 Answer

Why my heat pump only heat in emergency heat only,the condens is cutting off and on


It sounds like a maintenance issue with your heat pump, its clear that the unit is trying to run but one of the safeties is shutting it down trying to protect itself. most heat pumps are equipt with a High press lockout usually a manual reset ,a low press, cut out switch resets on rise of press automatically. Causes of LPCO Extremely dirty condenser coil or evaporator coil, Loss of fan on condenser, Low refrigerant charge. A competent Service man should be able to locate and correct this problem. A seasonal check up on the unit avoids these problems.

Feb 22, 2015 | GE Zoneline AZ38H12DAD Split System Air...

1 Answer

Amana Air Command 90 furnace LED light blinks 3 times pause 3 times


TRI-COLOR (DSI LED) DIAGNOSTIC TABLE
No. of Red BLINKS
1 Flame sensed when no flame should be present
Verify the gas valve is operating and shutting down properly. Flame in burner assemble should extinguish promptly at the end of the cycle. Check orifices and gas pressure.

2 BLINKS Pressure switch stuck closed/ inducer error
Pressure switch stuck closed. Check switch function, verify inducer is turning off.

3 BLINKS 1st-stage pressure switch stuck open/inducer error
Check pressure switch function and tubing. Verify inducer is turning on the pulling sufficient vacuum to engage switch.

4 BLINKS Open limit switch Verify continuity through rollout switch circuit.

5 BLINKS Open rollout/open fuse detect Verify continuity through rollout switch circuit, check fuse.

6 BLINKS 1st-stage pressure switch cycle lockout If the first stage pressure switch cycles 5 times (open, closed) during one call for heat from the thermostat the control will lockout.Check pressure switch for fluttering, inconsistent closure or poor vacuum pressure.
7 BLINKS External lockout (retries exceeded) Failure to sense flame is often caused by carbon deposits on the
flame sensor, a disconnected or shorted flame sensor lead or a
poorly grounded furnace. Carbon deposits can be cleaned with
emery cloth. Verify sensor is not contacting the burner and is locatedin a good position to sense flame. Check sensor lead for shortingand verify furnace is grounded properly.

8 BLINKS External lockout (ignition recycles
exceeded where flame is established and then lost)Check items for exceeded retries listed above and verify valve is not dropping out allowing flame to be established and then lost.

9 BLINKS Grounding or Reversed polarity Verify the control and furnace are properly grounded. Check and reverse polarity (primary) if incorrect.

10 BLINKS Module gas valve contacts energized
with no call for heat Verify valve is not receiving voltage from a short. If a valve wiring is correct and condition persists, replace module.
11 BLINKS Limit switch open - possible blower
failure overheating limit Possible blower failure, restricted air flow through appliance or duct work. Verify continuity through limit switch circuit and correct overheating cause.

12 BLINKS Module Ignitor contact failure Fault code indicates the module ignitor contacts are not functioning
properly. Replace module.Solid Module - internal fault condition Module contacts for gas valve not operating or processor fault.
Reset control. if condition persists replace module.
3 double 2nd-stage Pressure Switch Stuck Open/Inducer Error
Check pressure switch function and tubing. Verify inducer.

Nov 11, 2013 | Patton Electric Patton PUH680-U Electric...

1 Answer

Heat pump kicks out for "Low pressure switch open." Indicated by the leds on the defrost control board Happens 2 times and then shuts down for " Low pressure lockout"


Have you checked the pressures? if you have is it just the suction pressure low or are both the suction & the head pressure low? you could have multiple things cause that ex. low in freon, restriction, bad low pressure switch, bad board. If you don't know what your doing call a service tech. the LOW pressure lockout is a safety to prevent damage to your compressor.

Oct 15, 2013 | Ruud Defrost Control Board 47-102684-08...

1 Answer

My heat-pump went into lockout due to low water pressure. The pressure is back up to 50psi. After shorting between the test pins, the unit starts but the status light still flash about every 10 sec and...


the unit has a hi pressure safty switch on it, probally has a red push button on top. when the water slows down or stops the hi pressure trips to shut unit down to prevent compressor damage, the switch does not reset it self, find it in the outdoor unit and reset it, let me know. thanks wally.

Mar 11, 2011 | Heat Controller Heating & Cooling

1 Answer

What are the carrier 8000ts led error codes?


They are listed inside the front panel of the main unit.

LED CODE

EACH OF THE FOLLOWING STATUS CODES IS A TWO DIGIT NUMBER WITH THE FIRST

DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT BY

THE NUMBER OF LONG FLASHES.

STATUS

11 NO PREVIOUS CODE - Stored status code is erased automatically after 72

hours. On RED LED boards stored status codes can also be erased when power

(115 VAC or 24 VAC) to control is interrupted.

12 BLOWER ON AFTER POWER UP (115 VAC or 24 VAC) -Blower runs for 90

seconds, if unit is powered up during a call for heat (R-W closed) or R-W opens

during blower on-delay.

13 LIMIT CIRCUIT LOCKOUT - Lockout occurs if the limit or flame rollout switch is

open longer than 3 minutes.

- Control will auto reset after three hours. - Refer to #33.

14 IGNITION LOCKOUT - Control will auto-reset after three hours. Refer to #34.

21 GAS HEATING LOCKOUT - Control will NOT auto reset.

Check for: - Mis-wired gas valve -Defective control (valve relay)

22 ABNORMAL FLAME-PROVING SIGNAL - Flame is proved while gas valve is

de-energized. Inducer will run until fault is cleared. Check for:

- Leaky gas valve - Stuck-open gas valve

23 PRESSURE SWITCH DID NOT OPEN Check for:

- Obstructed pressure tubing. - Pressure switch stuck closed.

24 SECONDARY VOLTAGE FUSE IS OPEN Check for:

- Short circuit in secondary voltage (24VAC) wiring.

31 PRESSURE SWITCH DID NOT CLOSE OR REOPENED - If open longer than

five minutes, inducer shuts off for 15 minutes before retry. Check for:

- Excessive wind - Proper vent sizing - Defective inducer motor

- Low inducer voltage (115VAC) - Defective pressure switch

- Inadequate combustion air supply - Restricted vent

- Disconnected or obstructed pressure tubing

- Low inlet gas pressure (if LGPS used)

If it opens during blower on-delay period, blower will come on for the selected

blower off-delay.

33 LIMIT CIRCUIT FAULT - Indicates a limit, or flame rollout is open. Blower will

run for 4 minutes or until open switch remakes whichever is longer. If open

longer than 3 minutes, code changes to lockout #13. If open less than 3 minutes

status code #33 continues to flash until blower shuts off. Flame rollout switch

requires manual reset. Check for: - Restricted vent

- Proper vent sizing - Loose blower wheel - Excessive wind

- Dirty filter or restricted duct system.

- Defective blower motor or capacitor. - Defective switch or connections.

- Inadequate combustion air supply (Flame Roll-out Switch open).

34 IGNITION PROVING FAILURE - Control will try three more times before lockout

#14 occurs. If flame signal lost during blower on-delay period, blower will come

on for the selected blower off-delay. Check for: - Control ground continuity

- Flame sensor must not be grounded

- Oxide buildup on flame sensor (clean with fine steel wool).

- Proper flame sense microamps (.5 microamps D.C. min., 4.0 - 6.0 nominal).

- Gas valve defective or gas valve turned off - Manual valve shut-off

- Defective Hot Surface Ignitor

- Low inlet gas pressure

- Inadequate flame carryover or rough ignition

- Green/Yellow wire MUST be connected to furnace sheet metal

45 CONTROL CIRCUITRY LOCKOUT Auto-reset after one hour lockout due to;

- Gas valve relay stuck open - Flame sense circuit failure

- Software check error

Reset power to clear lockout. Replace control if status code repeats.

If status code recall is needed, briefly remove then reconnect one main limit wire to display

stored status code. On RED LED boards do not remove power or blower door before initiating

status code recall. After one status code recall is completed component test will occur.


Thanks for Choosing FixYa.


Kelly

Oct 05, 2010 | Heating & Cooling

3 Answers

Fault code says pressure switch lockout


This more often than not, indicates that your pressure switch is gone and needs to be replaced. Watch the YouTube video for a fuller explanation and heed the warning to use OEM parts! Gas Furnace Pressure Switch Failure and Replacement Amazon com gas furnace parts

Feb 06, 2010 | Heating & Cooling

1 Answer

Armstrong upflow,unit works intermittent problem,call for heat nothing happens,error code of 5 blinks then 6 blinks. i have no manuel, and the panels dont have the codes on them. anyone have access to the...


Armstrong

FAILURE CODES

LED Status Fault Description
Off
No Power to the System Control

Steady Flash (11 or more flashes with no pause)
Normal Operation (Standby or call for heat)

2 Flashes
Pressure Switch Closed When It Should Be Open

3 Flashes
Pressure Switch Stuck Open 30 Seconds or Longer After Call for Heat (System in 5-minute delay mode before next call for heat). On/off switch in "off" position during a call for heat will generate this code.

4 Flashes
Open Limit Switch or Limit Switch Circuit

5 Flashes
Flame Sense Signal Sensed Out of Proper Sequence

6 Flashes - pause - 1 Flash (see Note 1)*
Soft Lockout Type 1 (Failure to light within 4 trials for ignition)

6 Flashes - pause - 2 Flashes (see Notes 1 & 2)*
Soft Lockout Type 2 (Flame sense lost during run)

6 Flashes - pause - 3 Flashes (see Notes 1 & 2)*
Soft Lockout Type 3 (Pressure switch opened during run)

6 Flashes - pause - 4 Flashes (see Notes 1 & 2)*
Soft Lockout Type 4 (Limit or limit circuit opened during run)

6 Flashes - pause - 5 Flashes (see Note 1)*
Soft Lockout Type 5 (Flame has gone away after Error Code 5)

6 Flashes - pause - 7 Flashes (see Note 1)*
Soft Lockout Type 7 (Self-check failure)

10 Flashes* - SV9520H8034 only
Line Input Voltage Polarity Reversed

Dec 12, 2009 | Coleman Heating & Cooling

1 Answer

Meaning of rudd furnace trouble codes


Error Codes
A green LED indicates system faults
Steady On: System OK
Steady OFF: Board control fault or no power applied
1 Flash: Ignition failure (control in one-hour lockout)
2 Flashes: Pressure switch fault, fails open (switch is
stuck open)
3 Flashes: Limit switch open (main or auxiliary)
4 Flashes: Pressure switch fault, fails closed (switch is
stuck closed)
A yellow LED indicates flame status
Steady on: Normal flame is sensed
Flashes: As flame weakens, frequency of LED flashes
increases

Dec 12, 2009 | Heating & Cooling

1 Answer

I have a Carrier Weathermaker SXi. Furnance will not turn on. I shut power off and waited ten minutes and tried to restart. Codes flashing are 12, 31, 32, 33, 41, 42. Can this be started in emergency mode?


Emergency heat is made for this kind of situation.So yes you can.
now for the codes.
code 12= Blower on after power up
code 31=High heat pressure switch or relay didn't close or reopened
code 32=Low heat pressure switch or relay didn't close or reopened
code 33=limit circuit fault(Flame rollout switch is open)
code 41=board fault
code 42=control lockout

Please rate this solution

Jan 17, 2009 | Heating & Cooling

3 Answers

E60 error code


Found These Fault Codes On Internet, Hope This Helps, Daz

ALARM CODES

E00(E00)- Problems with water fill during washing
-Tap closed; solenoid valve, water distributor, wiring ,main PCB, pressure switches

E01(E00)- Problems with water fill during drying
-Tap closed; solenoid valve, wiring , main PCB, pressure switches

E10(E10)- Problems with water drain during washing
-Drain hose kinked, filter blocked, drain pump, water distributor, wiring , main PCB, pressure switches

E11(E10)- Problems with water drain during drying
-Drain hose kinked, filter blocked, drain pump, pressure switches

E20(E20)- Door open
-Cycle in Door delay, wiring , main PCB

E21(E20)- Fault in door delay power triac
-Wiring , main PCB

E30- Fault in electronic pressure switch
-Electronic pressure switch, wiring , main PCB

E31- Fault in electronic pressure switch circuit
-Main PCB (fault in electronic pressure switch circuit)

E32(E10)-Calibration error in electronic pressure switch
-Electronic pressure switch, drain pump, wiring , main PCB, filter blocked

E33- Incongruency between electronic pressure switches and safety switch 1
-Electronic pressure switch, safety pressure switch,wiring, main PCB

E34- Incongruency between electronic pressureswitches and safety switch 2
-Electronic pressure switch, safety pressure switch,wiring, main PCB

E35- Intervention of anti-overflow pressure switch
-Solenoid valve, water distributor, wiring, main PCB,anti-overflow pressure switch

E36- Water leakage (maximum number of resets exceeded)
-Water leakage, drain hose too low, pressure switch,wiring, main PCB

E40- Motor power triac short-circuited
-Main PCB (triac short-circuited)

E41- No signal from tachimetric generator
-Tachimetric generator on motor, wiring, main PCB

E42- Fault in tachimetric generator circuit
-Main PCB (tachimetric generator sensing circuit)

E43- Intervention of motor overload protection
-Motor, wiring, main PCB

E50- Insufficient heating during wash phase
-NTC sensor setting incorrect, heating element, wiring,main PCB

E51- Overheating during wash phase
-Heating element (to earth), main PCB (relays)

E52- Insufficient heating during drying phase
-NTC sensor setting incorrect, safety thermostat,thermostats, drying heater, wiring, main PCB (relays)

E53- Overheating during drying phase
-Drying heater (to earth), main PCB (relays)

E55- Fault in power relay for heating element (K3)
-Safety pressure switch 2, wiring, main PCB- 6 -

E60- Fault in washing NTC sensor
-Washing NTC sensor, wiring, main PCB

E61- Fault in drying NTC sensor(condenser)
-Drying NTC sensor (condenser), wiring, main PCB

E62- Fault in drying NTC sensor(duct)
-Drying NTC sensor (duct), wiring, main PCB

E63- Fault in 1/2 power thermostat
-Drying NTC sensor (duct), 1/2 power thermostat, wiring,main PCB

E70- Power triac to distributor motor short-circuited
-Main PCB (triac short-circuited)

E71- Fault in power relay to distributor loads
-Main PCB (relay open)

E72- No distributor position signal
-Water distributor motor, wiring, main PCB

E73- Incorrect timing on distributor contacts
-Water distributor, wiring, main PCB

E90- Fault in tank fill pump
-Hoses obstructed, tank fill pump, wiring

E91- Fault in tank drain pump
-Hoses obstructed, tank drain pump, wiring

E92- Fault in power triac to tank fill pump
-Tank fill pump, wiring, main PCB

Jan 04, 2008 | Zanussi ZWF1440 Front Load Washer

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