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High aux or spill limit switch diamond 80 - Heating & Cooling

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4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: York Diamond 80 Furnace: blows cold air after

There may be more than 1 limit switch. Look at the wiring diagram and follow it to all switches. Or jump out the complete circuit.

Posted on Jan 21, 2010

Therinnaiguy
  • 1420 Answers

SOURCE: 4 blinks, main limit switch open or aux limit

There is a limit switch above the burner with 2 wires going to it. Take a jump wire and jump out the switch to test it, It is 110 volts so be careful. If it fires, that switch is bad and will need to be replaced. There may be up to two more switches on the same circuit. These switches may be reset-able if there is a small dark red button between the two terminals. Why did the unit overheat in the first place. Is your air filter clean? Is the room air blower working? Are all return air grills free of obstructions?

Posted on Jan 25, 2010

heatman101
  • 43501 Answers

SOURCE: Main blower fan is not starting on my York Diamond

Hi,
Check to see if the blower motor is actually getting power to it...You will have to check for power on the heating speed terminal... and the neutral wires....you should have 120v across those two wires....
If you have power then the motor is bad...if no power then the heating relay went bad on the circuit board and you will have to replace the circuit board...

That is a common problem as those relays are often to light and wear out...

Just realize that without an electrical meter to trace things through you are really just grabbing at possibilities and not really able to correctly diagnose your problem...

heatman101

Posted on Dec 08, 2010

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My central AC is a York Diamond 80 (also my furnace). Thermostat set on Cool, isn't cooling. and when i shut thermostat off, it continues to blow air. red light flashing inside unit code = Limit switch...


Hi,
One of the limit switch in the furnace is tripped or went bad....
Try to find all of the reset switches and push the little red button on the top to reset them...
If that don't work you will need to take an electric meter and test each switch to see which one is bad...

heatman101

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