Lennox eNeRGy Series User Manual

eNeRGy-IOM-2020.11-EN
• 61 •
INDOOR FAN BLOWER
FAULT
POSSIBLE CAUSE AND SYMPTOMS
SOLUTION
High amps on action Fan motor
Pressure drop in the ducting installation too
low.
Reduce the rotation speed of the fan
Measure and estimate the airflow and pressure
and compare with the specification from
customer.
High level of vibration
Loosening of the fan or degradation of the
silent blocks
Check the fixing of the fan and transmission kit
Unstable running and high
vibration
Fan jumping from one operating point to the
other
Change rotation speed of the fan
OUTDOOR AXIAL FAN
FAULT
POSSIBLE CAUSE AND SYMPTOMS
SOLUTION
Circuit breaker
open
High Amps due to a low voltage from
the main supply
Check the voltage drop when all
components are running.
Change the circuit breaker
High amps due to freezing of the coil
Adjust the defrost cycle set points
Water ingress in the motor connection
box
Change the component
ELECTRICAL HEATER
FAULT
POSSIBLE CAUSE AND SYMPTOMS
SOLUTION
High Temperature trip out on
the safety thermostat of the
electric battery module
Low airflow rate
Measure and estimate the airflow and
pressure and compare with the
specification from customer.
Safety thermostat malfunction
Check the operating status of the safety
thermostat of the electric battery
module
MAINTENANCE DIAGNOSTIC
MAINTENANCE DIAGNOSTIC

Lennox eNeRGy Series Specifications

General

Brand	Lennox
Model	eNeRGy Series
Category	Air Handlers
Language	English