Comfort Alert is a breakthrough innovation for troubleshooting heat pump and air
conditioning system failures. The module easily installs in the electrical box of the
outdoor unit near the compressor contactor. By monitoring and analyzing data from the
Copeland Scroll compressor and the thermostat demand, Comfort Alert can
accurately detect the cause of electrical and system related failures without any
sensors. A flashing LED indicator communicates the ALERT code and guides the
service technician more quickly and accurately to the root cause of a problem. The
Comfort Alert module is also compatible with all Emerson branded thermostats of the
1F9X and 1F8X families that offer diagnostic "L" terminal connection. For better
protection, the 1F9X/1F8X "CA" model thermostats will flash Comfort Alert codes on
their display and allow active protection that turns off the compressor if a potentially
harmful fault code is detected.
Comfort Alert is designed for systems with Copeland Scroll compressors that have
internal overload protection. The software in the Comfort Alert module has been
optimized for different types of air conditioning applications: cooling only, heat pump,
two-stage compressors, and commercial three-phase.
Q: Is this part compatible to the 543-0033-00
Unit info
Lennox. Model xp19-060-230-05
Serial 5807J12701
Asked by Luis 2 years ago
Add your answer
Verified Reply- SupplyHouse Staff
Hi Luis. Yes, this 943-0033-00 is the direct replacement for Copeland 543-0033-00, however, the OEM version on the parts list for your unit is Lennox SKU: 85M53 - https://www.supplyhouse.com/Lennox-85M53-LSOM-2-Module
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