Description
When an HVAC fan or pump will not start, trips at start or hums, this checklist takes the technician through every likely cause in the right order – supply, control circuit, contactors, timer, protection settings and the motor itself – so the fault is found quickly and safely.
What’s included
- 7 sections, 36 checks with a hint for each: what a failed check usually means
- Covers DOL, star-delta and soft starters
- Interlock checks: fire alarm, E-stop, BMS enable, flow and pressure switches
- Protection settings: overload (incl. 0.58 × FLC for star-delta), MPCB, soft starter limits
- Motor and cable tests with IEEE 43 IR guide value
- Quick-reference table of guide values and an unbalance worked example
- Result section to record the fault found, action and running currents
Who it is for
HVAC technicians, service engineers, building maintenance teams and AMC contractors.
Format
4-page printable PDF (A4). Sample data is filled in so you can see how it works before entering your own.
Frequently asked questions
Does it work in Google Sheets?
Yes. Excel files open in Microsoft Excel, Google Sheets and LibreOffice. Word files open in Word and Google Docs.
How do I get the files?
The download link appears right after payment and is emailed to you. You can download again from My Account for 365 days.
Can my team use it?
Yes, anyone in your own organisation may use it. Please do not resell or publish the files.
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