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Rheem power vent model 42vp40fw locked out on vapor sensor how to reset unit

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Posted on Jan 02, 2017

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SOURCE: Rheem water heater with powerglow ignition wont re-light

I have fixed mine. The problem part is the Ignition Control module. It is made by Robert Shaw part # SP10758. I paid $93 plus shipping.

Works great now. A repairman wanted to sell me a gas valve for $488.
Watch out for these people.....

Posted on Jan 10, 2009

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1 Answer

Reset lock out due to fvd


You can reset some models.... depending on gas control valve and FVIR design.
Some newer models you replace the sensor located on outside of tank.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-flammable-vapor-sensor-works-Therm-O-Disc-25VS.pdf

Gene

Jun 04, 2014 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

50 gallon **** power vent LP with flammable vapor sensor problems can you bypassing


You can't bypass a flammable vapour sensor. it works on resistance not continuity. You can try moving the sensor outside for a while and it may reset itself...meaning that the resistance may fall back within range. You are best to have the sensor replaced by a qualified technician who can also verify that you do not have an underlying issue such as a gas leak which is causing the sensor to trip.

May 10, 2014 | RHEEM 50 Gallon FVR NATGAS Water Heater...

1 Answer

Hot water heater womt light, flammable vapor sensor code


Most likely: Combustion chamber got too hot because air intake is clogged with dust, causing less air to flow upward through vent pipe ... the slowed flow of air caused combustion chamber to overheat.

What brand and model water heater?
Look at label on side of unit and add comment.
Otherwise call service tech to repair/ replace water heater and clean arrestor screen (air intake) and replace or reset parts as needed, depending on model number and brand water heater.

AO Smith, Bradford white, and Rheem are main manufacturers.
Each has slightly different repair protocol, and each gas control valve can also be different. So more information is needed.

Identify gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
Rheem TRD/ FVIR glass vial
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html
How to remove combustion parts to inspect for Rheem glass vial and clean arrestor screen located under combustion chamber:
http://waterheatertimer.org/How-to-replace-thermocouple.html

Sep 30, 2012 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

1 Answer

Rheem water heater flashes seven times ,it is in lock out mode


You have Honeywell electronic gas control valve, and error code is 7 flashes.
Probably you have power vent model.
One manual from different company says: "Reset gas control using on-off button on front of control, replace flammable vapor sensor, replace gas control thermostat.
But with Rheem you also need specific steps: Remove gas burner and look for broken glass vial, and then blow out arrestor screen air intake using compressed air, clean burner parts, check for unobstructed venting, you will need new glass vial from Rheem depending on year and model number of water heater that appears on label on side of unit, or they may not have a repair kit for that model, and you might need a new gas control valve depending on model and how extensive problem was
You have Rheem water heater.http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-replace-thermocouple.html

Sep 28, 2012 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

My water heater say i have flammable vapors present and is locked out how can i reset it or fix it there are no vapors present


Contact Rheem
http://www.rheem.com/Contact.aspx
1 800 432 8373
Locate product information on label on side of tank.

Typical manuals say if lockout occurs, then refer to gas valve codes and/or troubleshoot section:
http://globalimageserver.com/fetchDocument.aspx?id=a92c7d0e-8a95-48ba-8810-cd714f33d47a
http://globalimageserver.com/fetchDocument.aspx?id=80b1d50e-695f-49ac-9aae-3e9489ef1e5a

For example the manual says:
1. Verify no gasoline or flammable
vapors are present
2. Reset control using ON/OFF switch
on the gas control valve
3. Replace the flammable vapor sensor
http://waterheatertimer.org/images/Wiper-FVSensor-100.jpg
http://waterheatertimer.org/pdf/Rheem-Parts-Guide.pdf
http://waterheatertimer.org/pdf/Rheem-parts-list.pdf

Aug 11, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

I have a rheem w/h Md 42vp50pf. It heats my shop floor through the radiant heat tubes. I noticed the shop was getting cold so I checked on it. The pump was on circulating water but the pipes are cold. The...


Similar 42vp50 direct vent product appears on following link:
http://www.rheem.com/product.aspx?id=C24E3F52-A6A4-4BC7-AF5B-0DF23A7A0263
sample manual for power vent series:
http://globalimageserver.com/fetchDocument.aspx?id=c0471d58-5e59-4be6-96f7-68361b8fb515

Manual has troubleshoot section:
If this is combustion-shut-off or FVIR or flammable vapor event, then manual says to call qualified technician.
Service call is certainly less expensive than any fire or injury caused by fire.
Other brands of water heater, for example Bradford White, have customer-resettable FVIR on some models.

Another thing that can be causing problems is air intake, especially in dirty environment like a shop, or if shop chemicals are being inhaled by burner. Burner parts are susceptible to chemicals in trace amounts below odor threshold. You might need fresh air intake for water heater, and air intake needs to be cleaned.

'System lockout' shows on troubleshoot page 32:
1. Gas supply is off or too low to operate.
2. Hot surface ignitor not positioned correctly.
3. Low voltage to the water heater.
4. Electric polarity to unit is incorrect - test and correct.
5. Combustion shut-off device tripped, contact service
agency.
Rheem phone number: 1-800-432-8373

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Jan 31, 2011 | Rheem Water Heaters

1 Answer

Basement was flooded when washer inlet hose burst. Approx 6 in of water in the area where the water heater stands. Complaint of no hot water, no pilot flame. Attempt to light pilot successful but pilot...


Certain Rheem water gas water heater models feature electronic controls with a flammable vapor sensor installed on the bottom portion of the water heater unit. This sensor is designed to shut off your water heater system to prevent fires in case flammable vapors are present within the area. If your flammable vapor sensor caused your water heater to shut down, check the area immediately for leaking gas or other flammable products. Common household chemicals such as bleach can also trip the safety system as well as unsuccessful burner ignition attempts.


White Rodgers Intelli-Vent PowerVent Control Equipped Models
  1. Step 1 Turn the water heater's blower switch off and disconnect the power cord for the water heater (refer to your particular model's operation guide for the exact location of the blower switch). Disconnect the Molex connector attached to the bottom of the control pad (the left most connector with five pins).
  2. Step 2 Turn on your multi-meter and set it to read resistance or "ohms". Connect one of the multi-meter's probes to the number two pin and the other probe to the number three pin of the Molex connector (middle black wires). If the reading on your multi-meter reads below 9k or above 45k ohms, the flammable vapor sensor is faulty and in need of replacement; you cannot reset the system until this issue is resolved.
  3. Step 3 Reconnect the Molex connector to the bottom of the control pad, reconnect the water heater's power if and turn the blower switch to the "ON" position. Press both the left and right buttons on the control pad at the same time. Wait for the green light on the control pad to blink and press the following buttons in sequence: Left, Right, Left, Left, Right, Left, Right, Right (you will need to perform these actions within 30 seconds of reconnecting the power cord to the water heater in order to be successful

Oct 01, 2010 | Rheem Water Heaters

2 Answers

Hosed basement floor. soaked flamable vapor sensor. Removed and dried sensor. control now in lockout. How do you get control out of lockout???


    Certain Rheem water gas water heater models feature electronic controls with a flammable vapor sensor installed on the bottom portion of the water heater unit. This sensor is designed to shut off your water heater system to prevent fires in case flammable vapors are present within the area. If your flammable vapor sensor caused your water heater to shut down, check the area immediately for leaking gas or other flammable products. Common household chemicals such as bleach can also trip the safety system as well as unsuccessful burner ignition attempts.


    White Rodgers Intelli-Vent PowerVent Control Equipped Models
  1. Step 1 Turn the water heater's blower switch off and disconnect the power cord for the water heater (refer to your particular model's operation guide for the exact location of the blower switch). Disconnect the Molex connector attached to the bottom of the control pad (the left most connector with five pins).
  2. Step 2 Turn on your multi-meter and set it to read resistance or "ohms". Connect one of the multi-meter's probes to the number two pin and the other probe to the number three pin of the Molex connector (middle black wires). If the reading on your multi-meter reads below 9k or above 45k ohms, the flammable vapor sensor is faulty and in need of replacement; you cannot reset the system until this issue is resolved.
  3. Step 3 Reconnect the Molex connector to the bottom of the control pad, reconnect the water heater's power if and turn the blower switch to the "ON" position. Press both the left and right buttons on the control pad at the same time. Wait for the green light on the control pad to blink and press the following buttons in sequence: Left, Right, Left, Left, Right, Left, Right, Right (you will need to perform these actions within 30 seconds of reconnecting the power cord to the water heater in order to be successful).

Jul 23, 2010 | Rheem Water Heaters

2 Answers

I painted the floor & my hot water heater (Reehm


The water heater is locked out. The following process should reset it.
1. Reapply power to the water heater and wait for 3 seconds for the system self-diagnostic check.
2. Within the first 30 seconds, the temperature dial must be rotated back and forth crossing the 120
degree mark at least six (6) times. This will reset the control and display a normal flash code
(slow blinking).

Mar 22, 2009 | Rheem 40 Gallon FVR NATGAS Low WATER...

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