Biodom 27 A | instructions for use, maintenance and installation |
March 2019
34
NO
YES
ALARM STB
Safety thermostat is
activated
Is the boilers
temperature above
95 degrees?
1. Replace STB
2. Check wiring between STB and electronic in
accordance with electronic connection diagram
1. Cool the boiler and press STB button again
2. If the error remains, check set boiler
temperature
Service
Install or replace turbulators
1. Clean the boiler and heat exchanger
2. Clean connection pipe
3. Clean fan
4. Clean chimney
5. Clean the chamber beneath the turbulators
Service
NO
Are all turbulators in
their places?
NO
YES
Is the heat
exchanger clogged?
ALARM GAS
Excessive temperature of flue
gases (above 250 degrees)