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My central unit is not working at all. - Heating & Cooling

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Go to the thermostat and turn the fan switch from AUTO to ON. If the indoor fan doesn't come on then your problem may be the transformer. Remove the cover from the thermostat and use a volt meter to check for 24 vac between R and the other terminals. If you have it then the transformer is OK. If you don't, check you circuit breakers for the indoor unit. Let me know what you find so I can go from there.

Posted on Aug 25, 2010

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Posted on Jan 02, 2017

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My right side passenger door does not lock automatically anymore. Is there a fuse that operates this.


no all is related to one fuse you can remove the door internal controls and decore and remove center lock motor plug and test two connectors with multimeter with set on 12v and then lock un lock door and check the reading of the multimeter if it read signal then all plugs and wires from central lock control unit to the door central lock unit is okay it this cae you have to replace the door central lock unit with the same if no signal is readed while you lock unlock the door then you have to check central control unit and all wire plus out of it to the door plug

2- you can remove central control unit from driver door and test it in passenger door (usually the same unit ) if it works with lock unlock its then the replaced unit is faulty and needs to be replaced if it not work then check plugs wires from central lock unit (usually found inside driver door ) to the central lock unit in passenger door

3- check signal for said door fro the output of central door unit if no signal then it mean that faulty central lock control unit

Feb 23, 2015 | 2005 Honda Accord

2 Answers

Had F70 &F71 changed ccu and ui won't power up just beeps


Even after they replacing the CCU and the MCU, I still kept getting the three beeps and the F70 Error... the fix was replacing the front controller boards (where the knobs and buttons are). check your connections also, and that they are in the proper slot.

Oct 31, 2011 | Whirlpool Duet WFW9400VE Front Load Washer...

1 Answer

F70 error code?


Hi.

F70: CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving

You find more in this article.

Regards.

Ginko

Aug 06, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Im gettina an f70 f71 code on my machine what does it means?


F70=CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.
F71=USER INTERFACE HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

Repair Sequence:
1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving

user interface is about $195 New;CCU is about $200. Hope this helps!

May 21, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Error code f70


Hi,

F70 Error code means Central Control Unit Heartbeat Failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

F71 error code meansUser Interface Heartbeat Failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

In both the above situations the following things are required to be checked and replaced where required:

1. Continuity of the User Interface harness.
2. Wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving.

Oct 04, 2010 | Whirlpool Duet WFW9550 Washer

1 Answer

F71. unplugged & plugged it back. now no lights, no F71 code, nothing works


Hi


Thanks for using FixYa. Error F71 is User Interface Heartbeat failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit. To resolve this issue you’ll have to:

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving



Please do rate the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Aug 22, 2010 | Kenmore Elite HE5t Washer

1 Answer

Central air not working


the pilot light has nothing to do with the operation of the central 'air' system.

As to the central 'heat' system however, it must be lit.

hope this helps.

Jun 13, 2010 | Goodman CLQ36AR49 Air Conditioner

1 Answer

F-70 f-71 what do they mean


Hi!

F70 Error code means Central Control Unit Heartbeat Failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

F71 error code means User Interface Heartbeat Failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

In both the above situations the following things are required to be checked and replaced where required:

1. Continuity of the User Interface harness.
2. Wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving.

Please do rate this solution as FixYa and revert for further assistance.


Thanks

Rylee

Jul 16, 2009 | Whirlpool Washing Machines

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