Question about Goodman GMS90703BXA Heater

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Rehab a heater with 24 volts and stage2 valves

All wires are disconnected i want to connect the heater do not have the diagram because it is erased

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Dayton heater mod 2yu59 is not heating up?

Need to check the low voltage circuit for 24 volts, the 480 volt to 24 volt transformer may have a circuit protection reset or fuse installed. All the 3 phase electric heaters use a low voltage control circuit for operation of relays (24 volt coils).

Nov 22, 2011 | Dayton 2YU59 Electric Heater

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If you're wiring up 120 volts to the primary then you need to connect H1 and H3 together, then connect H2 and H4 together. Then connect one side of line (120 volts) to H1 and H3 and connect the other side of line (120 volts) to H2 and H4. Then for the 24 volts secondary X1 is one side of your 24 volts and X2 is the other side of your 24 volts.
For 240 volt primary connect H2 and H3 together, Then connect one side of your Primary (240 volts) to H1 and connect the other side of your primary (240 volts to H4. Then your Secondary 24 volts is still X1 and X2.

May 08, 2010 | Heating & Cooling

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Pilot is on but thermostate will not turn it on what else can i try

What kind voltage is the heater operating on, 24 volt or 750 millivolt? If it is 24 volt check the transformer & thermostat for 24 volts along with gas valve, if it is a 750 millivolt system check the 2 wires coming from the pilot burner area for 750 millivolts, if you have a wall mount thermostat, tie the two wires together and see if main burners ignite, if they do replace thermostat. I really need more info to help you more, this unit came with two types of gas valves, a 24 volt & a 750millivolt type check name plate on unit to see which one you have.

Mar 07, 2010 | Williams 3003622 Ceramic Wall Mounted...

1 Answer

Heater will not turn on, it used to fire if you turn thermistat on and gave a little tap to the manifold it would fire right up. now nothing

Move wires around gas valve to see it there is a loose electrical connection then with a volt tester check and see if you have 24 volts at the gas valve, if you do have voltage at gas valve, replace valve.Also check furnace filer make sure it is cleaned, unit could be off on high limit, check limit (s) control (s) with ohms meter for continuity, good luck.

Feb 21, 2010 | Heating & Cooling

1 Answer

Pilot is lit, but does not ignite heater

Take the red and white wires going to your thermostat and jump them together. If the unit starts, you have a bad thermostat. If not, at the furnace, jump out the terminals where the thermostat wires are connected to. If the unit starts, you have a bad thermostat wire or connection. If not, you will need to check for 24 volts at the gas valve while the thermostat is calling for heat. If yes, bad gas valve. If no, bad transformer.

Jan 31, 2010 | Williams Heating & Cooling

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The pilot goes on and stay on but heater doesn't the thermostat its ok

Take the two wires going to the thermostat and cross them. If the unit starts, you have a bad thermostat. If it doesn't, at the heater put a jump wire across the terminals where the thermostat wires are connected to. If the unit starts, one of the wires going to the thermostat are broke. If it still doesn't start you may have a bad transformer. Check for 24 volts AC across the two terminals on the gas valve. If yes, bad gas valve. If no, bad transformer.

Dec 16, 2009 | Williams 2509612 Ceramic Mid-Size Heater

1 Answer

I am having a problem with a dayton(3E229D) gas heater. It has a standalone pilot that is lit and stays lit. The problem is that the burners don't ignite. I turn the heat on at the thermostat the fan comes...

if you can use a meter check for 24 volts at the valve when you call for heat. If you have 24 volts and no burners then the valve is bad, if you do not have 24 volts then another safety is locking out the valve

Dec 11, 2009 | Dayton Gas Furnace Heater

1 Answer

Wires not connected to gas valve need wiring diagram for Cozy wall vent heater

I think you mean a milli-volt system. I went to the cozy heaters website and found the wiring diagram in an owners manual for a similar unit, a W355. I bet the wiring diagram will work for your.

Dec 10, 2009 | Cozy (W352E) Heater

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Turning on a radiant heater

whoo tall order! well, since that unit uses a piezo crystal spark gap that's half the battle. go to the grainger site and find a 24 volt electrically operated solenoid for gas use. anything else won't do. next go to the white rodges web site and find a spark igniter with a flame rod flame detector 24 volt. you'll also need at least a 500va 120/24 volt transformer. a standard honeywell stat will do. I'm thinking the unit uses a millivolt generator to keep the gas valve open. you could substitute a mercury button cell to energize the pilot valve and keep the valve open. give me your email addy and I'll see if I can draw up a diagram for you.

Dec 13, 2007 | Heating & Cooling

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