Atag i36C User Manual

11 | P a g e
129 Description: Fan error.
Cause: Fan does not start up.
1. Ensure safe electrical isolation and remove the PWM cable at the fan (4 wire connector). Re-establish power
to the boiler and the fan should run at full speed.
2. If fan does not run, check for 230v from the PCB connector X11, pins 1 & 2. If no voltage, replace PCB. If
230v present and fan did not run with PWM removed, replace fan.
Expected fan resistances from PWM connection. All pins on the 230v side normally show OL.
Pins 1 - 2
6 MΩ
Pins 2 - 3
15.97 KΩ
Pins 3 - 4
34.72 KΩ
Pins 1 - 3
8.62 MΩ
Pins 2 - 4
18.78 KΩ
x
x
Pins 1 - 4
5 MΩ
x
x
x
x
130 Description: Maximum flue temperature exceeded.
Cause: Flue gas sensor not fitted to our boilers so if 130 fault code appears replace PCB.
133 Description: No flame detected.
Cause: Ignition error.
1. Check condensate pipe is clear of blockages and is running freely. Clear as required.
2. Check 230v at gas valve, connections 1 & 3.
a. If the voltage is correct, move to step 3.
b. If there is no voltage at the gas valve, check the PCB is sending 230v to the gas valve from connector
X12, pins 1 & 2. Replace PCB if there is no voltage.
c. If voltage is supplied from the PCB, check the condition of the wiring harness and connectors. Use a
multimeter to confirm continuity throughout the cables. Replace harness if faulty.
3. Check the working pressure at the P1 test point of the gas valve with all gas appliances in the house fully on.
The WP must be no less than 4mb under that of the WP at the gas meter for NG or 2.5mb for LPG.
a. If WP at the meter is under 19mb call National grid or local network to investigate the issue.
b. If under pressure at the boiler, investigate secondary isolation valves, pipe sizing or shale/debris, etc.
in gas pipe.
4. If the working pressure is correct, check the following:
5. Check ionisation current is between 0.8μA & 4μA using the A menu and A8.
6. If ionisation current is ok, proceed to step 7.
a. If ionisation current is too low, check earthing in house with an earth loop impedance tester.
b. If earthing in the property is ok, move to step 8.
7. Check 230v at the ignition transformer, connections 1 & 2 (black wires).

Atag i36C Specifications

General

Brand	Atag
Model	i36C
Category	Boiler
Language	English