Troubleshooting – Honeywell MAGIC STAT CT3100 User Manual

Page 11

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MODE Tap until MANUAL is displayed.

I Up

' Down

Close thermostat door, press to adjust tem
perature to desired setting (62° F shown).

MODE When you want to cancel manual override, tap

repeatedly until normal temperature display

shows.

TROUBLESHOOTING

Your thermostat requires little or no attention. Before you call for service, please check as

indicated in the following guide.

PROBLEM

CHECK

ACTION

No display.

—system switch. May be in OFF

position.

Move system switch to HEAT or

COOL position.

—fuse or circuit breaker.

If blown or tripped, replace fuse or

reset breaker.

—furnace power switch. May be

OFF.

Move switch to ON.

—thermostat connections.

Turn OFF power to furnace. Check

for correct terminal hookups. Re

pair any frayed or broken wires.

Firmly tighten all terminal screws.

—other.

Contact a qualified service techni

cian for assistance.

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