# Fault Finding & Multimeters

> Digital guide to multimeters, electrical tests, and fault finding for HVAC engineers. (iPhone/iPad app by Mr Combi Training.)

- Source: https://appshunter.io/ios/app/fault-finding-and-multimeters/id1212143364 (this page in markdown: same URL + `.md`)
- Developer: [Mr Combi Training](https://appshunter.io/developer/566867832)
- Category: Productivity, Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 9.0 · 37 MB
- Languages: American English
- Released: 2017-03-16
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fault-finding-and-multimeters/id1212143364/reviews.md

## What is Fault Finding & Multimeters?

We recently re-filmed and updated our hugely successful Fault Finding DVD and now you can get the latest version in high definition on your iPhone and iPad.

You can get access to all 21 chapters, totalling 77 minutes, showing you all about multimeters, how to carry out the electrical safety tests in full, how to test stats, fans, sensors and pumps, about diverters valves, expansion vessels, the sequence of operation and more.

Suitable for new entrants, those moving from installing to repairs and existing breakdown engineers. Learn at your own pace.

The chapters:
1. Testing Equipment
2. Multimeter Settings
3. Electrical Safety Tests
4. Earth Continuity Test
5. Short Circuit Test
6. Resistance to Earth Test
7. Polarity Test
8. Fault Isolation Procedure
9. Sequence of Operation
10. Pumps
11. Testing Switches
12. Water Pressure Switches
13. Flow Switches
14. Air Pressure Switches
15. Fans
16. Stats & Sensors
17. Diverter Valves
18. Domestic Heat Exchangers
19. Expansion Vessels
20. Water Hammer
21. Airing Cupboards

## Key features

- Multimeter usage and settings
- Electrical safety tests
- Fault isolation procedures
- Testing pumps, fans, and sensors
- Understanding sequence of operation
- 21 detailed chapters

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/fault-finding-and-multimeters/id1212143364/reviews.md

### 1/5 — Video don’t work

*2024-06-03*

What ever you don’t waste your money on these apps none of the video work. I have emailed Mr Combi and had no response. Asked for a refund and nothing total waste of money

### 1/5 — Not working

*2024-05-28*

Paid for the app, click on the video and they won’t play. Don’t waste your money

### 1/5 — Videos don’t work

*2024-05-02*

I’ve purchased fault finding and wiring controls but when you press the tutorial videos they don’t work. Not sure if it’s bugs and requires up dating but pay money for apps that don’t run😩

### 1/5 — VIDEOS DO NOT PLAY- DO NOT PURCHASE

*2024-04-25*

Videos do not play. I contacted the owner but he said the app was being updated and it would work in a couple of days. That was lies. The app does not work, do not waste your money

### 5/5 — Unable to play any videos

*2024-04-04*

Unable to any mr combi videos 
Have restalled app etc still no good

### 5/5 — Good App

*2023-07-06*

I’m a year into my boiler repairing journey and the videos helped and gave a few extra tips I’ve not been taught elsewhere. Teaches you about testing with a multimeter

### 5/5 — Excellent App

*2023-01-25*

I’m a fairly new gas engineer. This is incredibly helpful for me. It includes so much that just wasn’t included in the gas course. If you consider running the courses in person please let me know, I am gutted to have missed your final course. 07835343666 Barney if you want to do one more course 😅😁

### 1/5 — New to maintenance

*2018-10-24*

Useless, the videos are recorded from a distance. You see lots of Mr Combi in the screen but very little detail of the devices being tested. The film maker should have zoomed in on the devices when mr Combi was testing the switches and other parts. Good if you are a fan of mr Combi but not good if you want to learn something that would benefit you.

**Developer response:** Thank you for the review, we value your feedback and will do our best to improve the quality of our products. We hope you still learned a lot from the videos and we'd really appreciate it if you would reconsider the rating you have given the app.

### 2/5 — :( :(

*2017-07-06*

I expected so much more from this for fault finding. If your a installation engineer and want to move over to breakdowns don't bother with this. Some good material but other wise quite basic. No offence to mr combi, I'm just dissatisfied and wish I had saved my £19.99.

**Developer response:** Thanks for the feedback, pricing is obviously a significant factor in making a purchase and we're sorry this didn't meet your expectations. Creating an application such as this takes a considerable investment in time along with filming, production, development and hosting costs. We have positive feedback for our courses and DVDs from hundreds of engineers, over many years, so it may just be that your abilities are higher than this content is aimed at.

## Frequently asked questions about Fault Finding & Multimeters

### What is Fault Finding & Multimeters?

Fault Finding & Multimeters is a digital training resource that teaches users how to use multimeters and perform various electrical tests. It covers fault finding procedures and component testing relevant to HVAC systems.

### Who is Fault Finding & Multimeters for?

This app is designed for individuals new to the trade, those moving into repair roles, and experienced breakdown engineers. It aims to enhance skills in diagnosing and fixing issues with heating systems.

### What topics are covered in Fault Finding & Multimeters?

The app covers 21 chapters including multimeter settings, electrical safety tests, earth continuity, short circuit tests, polarity tests, fault isolation, and testing components like pumps, fans, sensors, and valves.

### How much does Fault Finding & Multimeters cost?

Fault Finding & Multimeters is a paid application, available for $4.99. There are no in-app purchases or advertisements.

### What devices support Fault Finding & Multimeters?

Fault Finding & Multimeters is compatible with iPhone, iPad, and iPod devices. It is also supported on Apple TV.

### When was Fault Finding & Multimeters last updated?

The latest version of Fault Finding & Multimeters was released on April 30, 2019. The app was initially released on March 16, 2017.

### Does Fault Finding & Multimeters have ads?

No, Fault Finding & Multimeters does not contain advertisements. It is a paid app with no in-app purchases.

### Can I learn at my own pace with Fault Finding & Multimeters?

Yes, the app is designed to allow users to learn at their own pace. It provides 77 minutes of high-definition video content across 21 chapters.

## Version history (last 5 releases)

### 1.7 — 2019-04-30

We've made some small changes under the cover.

### 1.6 — 2018-12-05

We've made some small tweaks for iOS 12.

### 1.5 — 2018-11-01

We've just made some tweaks here and there.

### 1.4 — 2018-03-02

Your last playback position will now be remembered automatically for each chapter.

### 1.3 — 2018-02-20

We've given the interface a refresh for 2018

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All apps by Mr Combi Training: https://appshunter.io/developer/566867832

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*