Trouble Shooting - Gabarron MATTIRA MAC15 Installation Instructions And User Manual

7 TROUBLESHOOTING
7.1 POSSIBLE FAULTS & SOLUTIONS
Problem
Boiler will not start
Fault E1 displayed
Heating flow temperature sensor
Fault E2 displayed
Heating return temperature sensor
Fault E3 displayed
Heating system water flow switch
Fault E6 displayed
DHW temperature sensor
Fault E8 displayed
Outdoor temperature sensor
Heating system water
discharging from 3 bar safety
valve
Domestic water discharging
from 7 bar valve
The buttons do not respond
Low heating temperature
If the suggested action fails to resolve a problem, please contact ELNUR technical service for further advice.
Possible cause
No power to boiler.
No power.
Heating overheat. Switch tripped.
DHW Overheat switch tripped.
DHW tank empty.
Heating water out temperature
probe defective.
Heating water return temperature
probe defective.
Low heating system pressure.
Pump not turning.
Air in system.
System resistance too high or
blockage.
Defective DHW tank temperature
sensor.
Defective outdoor temperature
sensor or not present.
Excessive heating system pressure.
Excessive pressure in domestic
water system.
Control panel blocked
Settings too low.
Failure of heating elements
Heat requirements miscalculated.
29
Solution
Check incoming power supply.
Check boiler control switch is on.
(See Section 6.1.)
Locate switch and reset. (See
Section 7.2)
Locate switch and reset. (See
Section 7.2)
Check cold water mains is on.
Open a hot water tap until the
water flows.
Contact Technical Service
Contact Technical Service
Check for leaks.
Refill heating system to 1.5 bar.
Check rotating freely (sect 5.5)
Replace pump if necessary.
Purge thoroughly.
Check automatic air valve open.
Vent pump (sect 5.5)
Check pump speed 3.
Check pump duty (sect 4.9b)
Open all radiator valves.
Install system by-pass.
Check connections. Replace sensor
if necessary.
This sensor is optional. Check
connections. Replace sensor if
necessary. Check parameter settings
correct (Sect 5.1)
Check filling loop has not been left
connected and is not "letting water
pass". Disconnect filling loop hose.
Check expansion vessel is charged
to correct level with air.
Check system expansion volume.
Check group combination inlet valve
is fitted. Install if not fitted.
Check incoming mains pressure to
boiler is below 3 bar.
Check expansion vessel is charged
to correct level with air.
See Section 6.10 BLOCKING THE
CONTROLS
Check temperature & output
selected.
Check and replace.
Re-calculate & configure.