SOURCE: Heater will not turn on
If these are newer units 5 years or newer, there may be a thermal safety device up near the top. Follow the wires to find it. if you have this, bypass it by connecting the two wires going to it to each other and not the little disc. If this does not get the burner to ignite, then the next culprit or you do not have one then next is the pilot generator. This is the round cylinder next to the pilot flame. It and has 2 wires connecting to the gas valve. Remove it from the pilot assembly, it usually is just a clip, unscrew the 2 wires and pick up a new one. The connection on the gas valve has these wires labeled as TP for thermopile (dont ask, I don't know) replace in reverse as removed.
SOURCE: Heater will not ignite
The igniter should have 120v if it is Hot Surface Igniter (HSI). You may be having a problem with gas pressures. Possible transformer problem also if you changed that with other parts.
SOURCE: pilot lights but when ignition pops back up the flame goes out
will either be the unitrol control box or the thermocouple, when you push down you are holding two magnets together and waiting for a small charge to be created from the probe in the flame , if this is not working you have no charge and the magnets won;t stick to allow the valve to open, change the thermo and see if that works first, its way cheaper than a new controler
SOURCE: Glo-Warm Wall Gas Wall-heater parts...
We had a problem keeping the pilot light to stay on, and this site recommended that it could possibly be the thermocoupler that was causing our problems also. We ordered the thermocouple, put it on,hooked it back up and it worked great! Thank you so much.
ordered thermocouple from www.masterparts.net
SOURCE: Rinnai heater turns itself off
Dannizen,
You could have something as simple as an air hose off, or a piece of carbon on the flame sensor. Your problem could also be a gas valve , which is much more complicated. If you are handy with tools you could be able fix either quickly. If you’re not good with tools you will need to get some help. Either way you have to have some back ground info on your heater. Get in touch with Rinnai and get a service manual for your unit. They cost around $15. If you have to call a service guy, use the Rinnai web site to find an authorized service person. Don’t just let your fingers do the walking and get some guy who has no idea what a Rinnai is. You’re only asking for trouble there. Your unit is a little older so don’t be surprised if parts are hard to find.
Good luck,
Tom Hawkins
Bethel, Alaska
[email protected]
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