12
Subject to Technical Modifications of GV-HR110
Turn off the facility
No lamps are lit on the service panel, even when you press on
both buttons.
Error:
- A fuse has blown in the fuse box, no power supply to the facility.
- One of the fuses on the circuit board has shorted.
- Loose contact, no voltage to the aggregate.
- Loose contact between the aggregate and control panel.
Red light constantly lit on the control panel:
Error for control:
- Frost thermostat switched off. (Facilities with water heaters.)
- Faulty sensor in aggregate
- Faulty sensor in control panel
- If no sensor is attached for incoming air it has been replaced
by a resistor that is faulty
- Loose sensor wire or loose bridge in coupling list on the circuit
board.
Condensation flowing from the aggregate:
Error:
- Condensation drain fouled with dirt
- No water in the waterseal
- Condensation drain fouled due to frost.
- Drain is not sufficiently protected from frost
No incoming air to the residence:
Error:
- Faulty fan
- Fouled incoming air filter
- Fouled outside air grid
- A fuse has blown on the circuit board
- No power supply to the facility
No exhaust air from the residence:
Error:
- Faulty fan
- Fouled filter
- A fuse has blown on the circuit board
Cold incoming air
Error:
- Counter-flow heat exchanger is fouled with dirt or ice.
- Faulty exhaust fan
- Fouled exhaust air filter
- An electric postheater is disconnected due to overheating
protection (Only facilities with electric postheaters mounted).
- No circulation of hot water to the waterborne postheater.
(Only facilities with mounted waterborne postheaters).
- Fouled circulation pump, air in the hot water pipe, faulty
thermostat/motor valve, faulty setting of control panel.
Display message:
Computer error:
- no connection with circuit board
- lead too long between display and circuit card
Version error:
- Program displayed and circuit card not compatible
Exchange filter:
- Filter must be changed
Stop ON-OFF:
- Filter has not been exchanged/cleaned within 14 days
from the filter alarm being triggered.
The facility is turned off.
Troubleshooting
