20 Most Recent Honeywell Ct87n "the Round" Heat/cool Thermostat New/fresh/sealed Questions & Answers


These are color codes wires for terminals that control fan relay,start,stop, temp-up/down ect. Also you can trace out those wires, Where they are going and what terminal on the wiring schematic they control.

Honeywell Ct87n... | Answered on Jun 28, 2014


Some time ago I had that happen and because of the age my repair man said it would cost too much to repair it. The problem was a worn out thermostat.

Honeywell Water... | Answered on Feb 13, 2019


This is likely a gas valve issue. Call a repair person, it is not recommend you repair it as there is a danger of explosion.

Honeywell Water... | Answered on Jun 07, 2018


No, the the defective valve is only on gas fireplaces and stoves, not hot water heaters.

Honeywell Water... | Answered on Oct 04, 2017


Check the pilot is clean not a short flame so its missing the sensor. Also check flame sensor and connection .

Honeywell Water... | Answered on Aug 12, 2017

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