Honeywell T8090A/191108A Benutzerhandbuch

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Troubleshooting
Your Honeywell thermostat requires little or no attention. Most problems can generally be
traced to the following:
Problem  
Check
Action
No heat.
— system switch. May be in OFF or
COOL position.  
Move system switch to HEAT position.
— fuse or circuit breaker.
If blown or tripped, replace fuse or reset
breaker.
— furnace power switch. May be Off.
Move switch to ON.
— pilot flame. May be out.
Relight pilot flame per furnace manufacturers
instructions.
  
— R and W thermostat connections.
Turn Off power to furnace. Check for correct
terminal hookups. Repair any frayed or
broken wires. Firmly tighten all terminal
screws. Turn On power.
— other problem.
Contact a qualified service technician for
assistance.
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