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4.
For the Service Technician
4. For the Service Technician
4.1 Start-up and operating instructions
The Windhager Customer Service or Partner Customer Service will start up the boiler and will familiarize the
customer with the system operator and cleaning of the boiler. Start-up and maintenance are part of the guarantee
requirements of the “warranty conditions” – see also section 2.15.
We recommend that you obtain a maintenance service contract.
4.2 Service and repair work
Service and repair may be performed only by appropriately qualified technicians.
Please note:
Disconnect the mains power plug before opening the control panel for service or repair purposes. Raise cladding
cover at rear, unhook and pull backwards – Fig. 78. Disconnect the mains power plug – Fig. 79.
Fig. 78 Taking off cladding cover at rear
Fig. 79 Disconnecting mains power plug
Blower plug
Feed unit
mains plug
Devices
power plug
Attention!
After the emergency shut-off switch trips, the boiler and accessories are not completely without
power! When replacing system components (pumps, mixing valves, etc.) prevent all power input (e.g.
by removing the mains power plug).
4.3 Checking and servicing the thermal process safeguard
(Not needed for all boiler models, only if the boiler has a thermal safety device. Please inform your customer)
Attention!
The function of the thermal process safeguard must be checked once a year by a technician and the
amount of limescale in the thermal safety device must be checked. If there is limescale in the thermal
safety device then it must always be removed.
- Press the red cap against the valve (Fig. 80) > Water must flow out into
the funnel.
- Little outflow at funnel > Limescale in thermal safety device (pump limes-
cale remove – e.g. formic acid – through the thermal safety device).
- Thermal process safeguard dripping > Clean the seal on the piston and
valve seat. If the seal is damaged > Renew the piston.
Note:
There is no need to remove the fitting for this purpose!
Fig. 80 Thermal process safeguard, pres-
sing red cap against valve