19
No
.
Item no
.
Description
15
072028
Gasket – 1 cable
16
060536
Bypass motor
17
072010
Assembled fan housing
18
060559
EC fan
19
072027
Gasket – 2 cable
20
072035
O-ring for drain connection
21
072034
Drain connection
22
072014
Counterflow exchanger 400 mm.
23
069807
Sensor clips for exhaust air
24
072024
Gasket for counterflow exchang-
er
25
072040
Blind plug M25x1.5
26
072021
Bottom plate – Ral. 9016
27
072046
Sealing strips – 6mm – L 405 mm
TROUBLESHOOTING
Safety thermostat in electric heater
If a fault occurs in the built-in electric heater, the safety
thermostat will switch off the unit. The electric heater is
equipped with a fire thermostat, which automatically
shuts off the power if the temperature exceeds 40°C.
When the temperature falls, the heater switches on again
automatically.
As an extra safety feature, there is a built-in thermal fuse
which triggers disconnection if the temperature exceeds
60°C.
Reconnection must be executed manually via the red button
indicated in the pictures below.
The red reset button can be activated through the fan
housing with a screwdriver. REMEMBER to disconnect the
power from the system!
System not running
• Fuse in electric panel has blown, no voltage in the
system.
• One of the fuses in the system’s control board has blown.
• Loose cable, no voltage to the unit.
• Incorrectly set weekly program.
• Filter timer has switched off the system.
No supply air
• Defective supply air fan.
• Clogged supply air filter.
• Outdoor air grille clogged with dirt and leaves during
autumn or snow and ice during winter.
• Fuse on control board has blown.
• Unit is defrosting (supply air fan runs at reduced speed)
• Incorrect setting of Optima controls
No exhaust air
• Defective exhaust fan.
• Clogged exhaust filter.
• Fuse on control board has blown.
Cold supply air
Fault
• Heat exchanger is clogged.
• The exhaust fan is defective.
• The exhaust air filter is clogged.
• The electric preheating surface is disconnected from the
overheating thermostat (only for systems with an
electric preheating surface are installed).
• Air in heating pipe, defective thermostat/motor valve,
incorrect setting of control panel.
If none of the above errors are relevant, contact:
• During the warranty period (0-2 years), the installer from
whom the unit was purchased.
• After the warranty period (2 years ->), the installer from
whom the unit was purchased or the Genvex Customer
Centre by calling 7353 2700.
Please have the data from the type plate ready (silver plate
on the unit).
Alerts
See Optima 270 operating instructions.
Reset button