Furnace in a 2010 day dreamer

[Sharon Burton]

Furnace was working fine and then after about 3 cycles one morning it wouldnt come back on. When we try to turn it on, you hear a click and nothing else happens. Any ideas what it could be?

[Bama Rambler]

What brand furnace do you have?
Which thermostat do you have?

Does the blower come on when you hear the click?

Can you tell where the "click" is coming from?

Have you checked the fuses in the distribution panel?


P.S. Welcome to FRF!

[Sharon Burton]

It is Suburban furnace and a Dometic Duo Therm thermostat. The blower does not come on and we have checked the fuse. The one click we here is coming from the furnace itself.

[Bama Rambler]

Since the motor isn't running there are only a couple of things that will prevent that. Since you're hearing the Time Delay Relay (TDR) click you're getting power that far.

There should be a switch/circuit breaker on the furnace itself that if tripped would stop the blower from running. Check that first.

Another thing that could be wrong is that the contacts on the TDR are burnt not allowing power to the blower.

Also the blower motor itself could be bad.

[cavie]

Originally Posted by Bama Rambler

Since the motor isn't running there are only a couple of things that will prevent that. Since you're hearing the Time Delay Relay (TDR) click you're getting power that far.

There should be a switch/circuit breaker on the furnace itself that if tripped would stop the blower from running. Check that first.

Another thing that could be wrong is that the contacts on the TDR are burnt not allowing power to the blower.

Also the blower motor itself could be bad.

There will not be a circuit breaker that's 120 volt. The furnace is 12 volt. There will not be a blown fuse because the ignighter is 12 volt and working.

[5picker]

Originally Posted by cavie

There will not be a circuit breaker that's 120 volt. The furnace is 12 volt. There will not be a blown fuse because the ignighter is 12 volt and working.

Come on cavie, even you the electrician know there are 12v circuit breakers.
And... I've seen them supply 12v to furnaces, especially in older, larger 5th wheels with time delay relays and no control board.

To the OP... you are going to need to do some voltage checks.
Do you own a multimeter and know how to use it?

[Bama Rambler]

Originally Posted by cavie

There will not be a circuit breaker that's 120 volt. The furnace is 12 volt. There will not be a blown fuse because the ignighter is 12 volt and working.

There definitely ARE 12 volt circuit breakers! The service manual for those furnaces call them circuit breakers.

If you read the OP's post, the igniter isn't working. Because, the only way to get the ignitor to work is to have the sail switch made and the only way to get that to happen is to have the blower running which the OP said isn't happening!

Come on Cavie, at least read the thread before posting.

[Bama Rambler]

Back to the OP.

5Picker is correct. You need to do a few voltage checks to see where the power is stopping.

[Sharon Burton]

Trying to get to the furnace is going to be a chore in itself. Half to take the basement panels out to try and get to it. It sets under the pantry in the kitchen and have to go under the shower to get to the back of the furnace. We have no outside door to get to the back of the furnace. ��

[cavie]

Originally Posted by 5picker

Come on cavie, even you the electrician know there are 12v circuit breakers.
And... I've seen them supply 12v to furnaces, especially in older, larger 5th wheels with time delay relays and no control board.

To the OP... you are going to need to do some voltage checks.
Do you own a multimeter and know how to use it?

For the sake of newbies trying to learn and diy's it is VERY much easier to keep Breaker and Fuses discussions on the 120/12 volt level on a forum like this. In referring to breaker fuses it better to call them resettable fuses so the newbie understands the difference.

[Bama Rambler]

Originally Posted by Sharon Burton

Trying to get to the furnace is going to be a chore in itself. Half to take the basement panels out to try and get to it. It sets under the pantry in the kitchen and have to go under the shower to get to the back of the furnace. We have no outside door to get to the back of the furnace. ��

I feel your pain, ours is built into the kitchen cabinet and you have to remove the entire panel on one side of the cabinet to get to it.

[Sharon Burton]

Does anyone know what model of the suburban furnace is in a 2010 RED 36 Day Dreamer Cedar Creek?