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Daniel Plourde
Daniel Plourde, HVAC Technician
Category: HVAC
Satisfied Customers: 251
Experience:  hvac technichian at performance plumbing and heating
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How does the electrode tell the main burner to turn on and

Customer Question

How does the electrode tell the main burner to turn on and ignite
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: Just bought a house
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: Replaced the control valve today with a brand new one
Submitted: 4 months ago.
Category: HVAC
Expert:  Daniel Plourde replied 4 months ago.

hi i am dan i can help you with this. first i need a little more information. what are you working on? what is the problem?

Customer: replied 4 months ago.
Then power vent 2 water heater and the main burner won't ignite , pilot lights . We talked to Rheem factory last week bought the new part and having the same problem
Customer: replied 4 months ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer: replied 4 months ago.
Dan?
Expert:  Daniel Plourde replied 4 months ago.

ok what is the model number of the heater? what have you replaced?

Customer: replied 4 months ago.
41vrp50n
Customer: replied 4 months ago.
Replaced the control valve
Expert:  Daniel Plourde replied 4 months ago.

ok what is the model of the control valve? does the combustion blower run?

Customer: replied 4 months ago.
Combustion blower runs, it's 200 N Wiper combination control kit
Customer: replied 4 months ago.
2000
Expert:  Daniel Plourde replied 4 months ago.

ok and have you checked the pressure switch?

Customer: replied 4 months ago.
No where is the pressure switch
Expert:  Daniel Plourde replied 4 months ago.

it will be a switch with 2 wires and a small 1/4" tube connected to it. looks like a hockey puck. make sure that hose it completely clear and the vent pipe is not restricted in any way

Expert:  Daniel Plourde replied 4 months ago.

it will be up near the blower

Customer: replied 4 months ago.
Hose is clear just checked and it's clear
Expert:  Daniel Plourde replied 4 months ago.

ok do you have an electrical meter?

Customer: replied 4 months ago.
No
Expert:  Daniel Plourde replied 4 months ago.

ok how old is the heater? have you tried cleaning the flame sensor?

Customer: replied 4 months ago.
10 years and cleaning it now
Customer: replied 4 months ago.
Sanding rust off the flame sensor , should it be shiny ?
Customer: replied 4 months ago.
Can you just call me(###) ###-####
Expert:  Daniel Plourde replied 4 months ago.

yes it should be shinny metal. doesnt have to be perfect but good enough. let me know how you make out after that

Customer: replied 4 months ago.
Clean the inside of the flame sensor where the pilot electrode goes ?
Expert:  Daniel Plourde replied 4 months ago.

the flame sensor is at the pilot light. cleaning it requires removing the whole burner and pilot assembly

Customer: replied 4 months ago.
We got that out already smd are cleaning it
Expert:  Daniel Plourde replied 4 months ago.

ok if it is all clean re asemble it and check it now

Customer: replied 4 months ago.
How long would it take it for the main burner to turn on once the pilot is on
Customer: replied 4 months ago.
Cleaned, put it back on, blower is working and pilot is lit
Expert:  Daniel Plourde replied 4 months ago.

should be within 30 seconds

Customer: replied 4 months ago.
Ok it didn't work
Expert:  Daniel Plourde replied 4 months ago.

ok make sure the flame sensor wire is also making good contact to the gas valve

Customer: replied 4 months ago.
None of that worked
Customer: replied 4 months ago.
Can I get a refund ??
Expert:  Daniel Plourde replied 4 months ago.

ok the flame sensor may be bad. the only way to confirm that is with a meter to read th mv signal from the sensor. if you want to try replacing it anyway would not be a bad idea since that is the most likely problem at this point.

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