Wiring and electrical safety · Faisalabad, Lahore, Punjab

SOFAR inverter shows DC or AC SPD failure (ID142, ID143) after a storm

Short answer

ID142 and ID143 mean the SOFAR inverter's DC or AC surge protection device (SPD) has failed. SPDs absorb lightning and grid surges and wear out doing so. After a storm, this code means the inverter has lost part of its protection and should be inspected.

What you will see

ID142 or ID143 after thunderstorms
Other equipment also damaged in the same storm

Why it happens

A nearby lightning strike or grid surge sends a spike through cables. The SPD diverts it to earth and can be used up in the process.

Diagram

Surge protection gets used up

01Storm or grid surge
02SPD diverts it to earth
03SPD worn out
04ID142 (DC) or ID143 (AC)
05Inspect before the next storm

SOFAR models with built-in SPD monitoring.

What you can check yourself

Note the date of the storm
Check whether other appliances were affected

What not to do

Do not ignore the code before the next storm season
Do not open the inverter

When to call us

Inspect the inverter and its SPDs
Check earthing and external surge protection
Arrange repair or warranty assessment

Monsoon storms

Monsoon thunderstorms across Punjab cause SPD faults every year. We inspect SOFAR systems and earthing after storms.

Send us

Event List photo and the storm date