EN-61
EN
6 Table of alarms
* All possible options are covered by this table
Supply air filter
clogged
Supply air filter fouling
pressure sensor
0-1000 Pa
B1
- Clean or replace filter
Frosted heat
exchanger; operating
sensor
B5 or B9
- Heat exchanger frosted
- Clean the heat exchanger
- See causes
Heat recovery unit
frosted
Fouling level
pressure sensor
0-1000 Pa
B6
- Heat exchanger frosted
- Clean the heat exchanger
- See causes
Return air filter
clogged
Return air filter fouling
pressure sensor
0-1000 Pa
- Clean or replace filter
Supply air fan motor
assembly protection
Supply air fan monitoring
ID2
- Phase check
- Voltage too low
- Thermal protection
- Check wiring
- Monitor supply voltage
- Monitor starting current
Return air fan motor
assembly protection
Return air fan monitoring
ID3
- Phase check
- Voltage too low
- Thermal protection
- Check wiring
- Monitor supply voltage
- Monitor starting current
Rotary heat
exchanger
unit
Electric pre-heater
circuit breaker QR1
ID4
- Circuit breaker (QR1)
- Current too high
- Reset or replace
- Monitor current
Electric heater
circuit breaker QR2
ID5
- Circuit breaker (QR2)
- Current too high
- Reset or replace
- Monitor current
Humidifier
Water
- Water insufficiently
- Add a handful of salt
Coil 1 pump
- Electrical protection fault
- No water flow
- See causes
- See causes
Coil 2 pump
- Electrical protection fault
- No water flow
- See causes
- See causes
Clock battery must