Honeywell Chronotherm Plus Thermostat – Trane XL19i Condenser

by | Thermostats | 0 comments

Honeywell Chronotherm Plus Thermostat - Trane XL19i CondenserHoneywell Chronotherm Plus Thermostat - Trane XL19i Condenser – I have a Honeywell Chronotherm Plus 8624D running a Trane XL19i Air Conditioner with a Trane XV90 Gas Furnace - all installed new in new construction in 2003. Every winter, during the morning warm-up from 66 to 70, the burners stay on for approximately 1.5 hours at 70, then rise quickly to 73 before finally shutting off.

The only way to interrupt the process is to turn the system OFF at the thermostat. The system is on AUTO with the cooling set at 75 for the winter.

I have swapped the thermostats (there are two sets in the house, this is the one in the attic for the second floor) with the same results. I have not swapped the thermostat circuit boards, but I can not see a reason to.

The main floor is on the same schedule but has never done this three-degree burst. I have had three different contractors out, with corresponding charges for thermostat troubleshooting with no luck. Have you ever seen this? Any thoughts? Thanks! (more…)

Air Conditioner Troubleshooting Good AC Repair Tips

by | Air Conditioning | 12 comments

For proper Air Conditioner Troubleshooting, you need to understand some basics of air conditioners. This includes basic refrigeration, electricity, electrical components and how electro-mechanical controls work. In addition, basic air conditioner components and air conditioner sequence of operation. Before troubleshooting, you need to identify the basic problem with the system. Aside from the basics such as blown fuses or a tripped breaker we will explore other areas to look at for air conditioner troubleshooting. Tripped circuit breakers for air conditioning systems are covered here. A good preventive maintenance program done periodically can help you avoid common air conditioning problems that require troubleshooting. (more…)