Element
Operation and Maintenance
L-OMM-0003_A
• 10/8/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
129
of
157
PIM Errors
7
LWCO
8
Remote Proof
9
Air Pressure
10
Low Gas Pressure
11
Boiler Outlet/Tank Top Sensor
12
Boiler Inlet/Tank Bottom Sensor
13
Vent Sensor
14
Hi-Limit Sensor
15
Ignition Failure
16
Flame Loss
17
Vent Hi-Limit
18
Boiler/Tank Hi-Limit
19
False Flame
20
OEM Card
21
Internal Failure
22
Hi-Delta
23
Not used
24
Low Voltage
25
Blower Speed
26
High Gas Pressure
tN4 Errors
(related to communication between multiple heaters in a linked system)
27
Master Lost
28
Device Lost
29
Device Duplicate
30
Device Error
16.1.10 Maintenance Schedule
16.1.10.1 Annually (Every 12 Months)
1. Schedule annual service call by qualified service agency.
2. Check for piping leaks around pumps, relief valves, and tank connections. Repair, if found.
3. Check to ensure area is free from combustible materials, gasoline, and other flammable
vapors or liquids.
4. Visually inspect venting system for proper function, deterioration or leakage.
5.
Check temperature and pressure relief valve. Refer to manufacturer’s instructions on valve.
6. Inspect condensate drain and ensure condensate is directed to an appropriate condensate
system or drain, as required by local codes.
7.
Check all operation of safety devices. Refer to manufacturer’s instructions.
8. Inspect burner and gas train components for wear or deterioration.