Lennox CL50-RoofTop - Faulty Probes and Sensors

CLIMATIC™50 – IOM – Rooftops/ Aircoolair CL50-ROOFTOPS-IOM-1107-E
36
Faulty Probes and Sensors
Error code: 081, 082, 083, 085, 086, 087, 088, 111, 121, 131, 141
Description
One or more temperature probes or pressure sensors in the cooling systems or elsewhere are short circuited,
cut or disconnected.
Action
" Blowing or outside ambient temperature:
The compressors and additional heaters shut down, ventilation remains.
" Temperature or pressure for circuit:
All compressors in the circuit shut down.
" Fault signalling. Memorisation is displayed.
" Display of fault.
081, Temperature sensor; Ambient.
082, Humidity sensor; Ambient.
083, Temperature sensor; Outside.
085, Temperature sensor; Blowing
086, Temperature sensor; Outlet 1 of condensation heat exchanger.
087, Temperature sensor; Outlet 2 of condensation heat exchanger.
088, Temperature sensor; Return air.
111, Temperature sensor or pressure probe; Circuit 1.
121, Temperature sensor or pressure probe; Circuit 2.
131, Temperature sensor or pressure probe; Circuit 3.
141, Temperature sensor or pressure probe; Circuit 4.
Reset
The unit returns to normal operation after the signal from the faulty probes or sensors is re-established.
Possible causes Solving the problem
Damaged probes or sensors Replace probe or sensor
Incorrect wiring or loose connection on a probe or sensor Check probe and sensor connections and wiring