MEL Assist Pro
Field paperwork and every brand's codes, in one subscription
The diagnostic wizard stays free. Pro adds the signed-off PDF report, the complete multi-brand fault-code library and unlimited cases that follow you between devices.
Free
Diagnose on site, no account needed.
- Guided diagnostic wizard with ranked causes, risk level and safe checks
- AI follow-up panel and knowledge base
- Mitsubishi Electric core fault codes
- Up to 10 cases stored on this device
Pro monthly
£4.99 per engineer, per month
Full access, billed monthly. Cancel any time from Settings.
- One-click PDF diagnostic report with evidence checklist and sign-off block
- Full multi-brand fault-code library: Mitsubishi Electric, Daikin, Toshiba and Fujitsu
- Every model-series and indoor/outdoor filter, plus “Diagnose this code” prefill
- Unlimited saved cases, synced across every device you sign in on
Pro yearly
Best value
£49.99 per engineer, per year
Best value — save compared with monthly billing.
- One-click PDF diagnostic report with evidence checklist and sign-off block
- Full multi-brand fault-code library: Mitsubishi Electric, Daikin, Toshiba and Fujitsu
- Every model-series and indoor/outdoor filter, plus “Diagnose this code” prefill
- Unlimited saved cases, synced across every device you sign in on
MEL Assist is decision support only and remains independent of any manufacturer. A subscription does not change your obligation to isolate power before invasive checks, hold valid F-Gas certification for refrigerant work and verify every code against the model's official service documentation.