# Record a breakdown or service call Source: https://help.mucka.ai/gas-certs/record-a-breakdown-or-service Category: Certificates Last updated: 2026-09-09 > Log a Gas Breakdown / Service Record on site, with per-appliance checks, fuel readings and a next service date, then send it to the customer as a PDF. The Gas Breakdown / Service Record is for a service or breakdown visit to a gas appliance, like a plantroom boiler or a burner. It records the checks you carried out, the readings you took and the work done, then hands the customer a clear PDF of the visit. It is a service record, not a landlord certificate, so there is no landlord block, just the client and the property. ## When to use this one - A planned service on a commercial or domestic gas appliance. - A breakdown or callout where you want to record what you found and what you did. - Anything where the customer needs proof of the visit but it is not a statutory landlord check (that is the CP12). If you are doing the annual landlord gas safety check, use the CP12 instead. If you are doing a standard domestic boiler service, the Boiler Service Record may suit better. They live side by side, so pick whichever matches the job. ## Start the record You can start one two ways: 1. **From the job.** Open the job from [**Jobs**](/jobs) and use the **Gas Certificates** card. Starting it here links the client, the property and the engineer for you. 2. **From the Gas Certs page.** Go to [**Gas Certs**](/gas-certs), tap **New certificate**, and pick **Gas Breakdown / Service Record**. ## Fill it in Work down the form on site: - **Appliances.** Add each appliance with its location, make and model. For each one, record the **fuel pressure** (the unit is locked to mbar so it can never be read wrong) and the **fuel type** (natural gas, LPG, oil or other). - **Analyser readings (optional).** Four more readings sit under the fuel block: the **working pressure at the meter**, **oxygen**, the **gross flue gas temperature** and the **gas rate**. Every one is optional and none of them holds up approving the record. Fill in whichever your analyser gave you and leave the rest. Only the ones you filled in print on the certificate, so a blank block costs the customer nothing. - **Service checks.** The checks are grouped into three sections so they follow the job: **Preliminary checks**, **Service checks** and **Service operations**. Mark each Pass, Fail or N/A, with a note and a photo where it helps. If an appliance was not serviced, say why. The Service checks section now includes the **condensate trap**, which matters on a commercial condensing boiler the same way it does on a domestic one. - **Gas supply and pipework.** The tightness test and a visual check of the pipework. - **Additional information.** Note any **spares required** for a return visit and any **additional notes** for the customer. Both are optional. - **Next service due.** Mucka suggests twelve months ahead. Change it if the manufacturer interval is different. - **Sign it off.** The engineer signs on screen. The customer can sign for receipt too, but they do not have to. Tap the signature box and the signing pad opens full screen, with room to sign properly. Everything saves as you go, so you can put your phone down mid job and pick up where you left off, even on a different device. ## If something is unsafe If you mark an appliance Immediately Dangerous, At Risk or Not to Current Standards, Mucka shows a **Defects** panel and offers to **draft a Gas Warning Notice** pre-filled with the unsafe appliances. You review and approve that like any other certificate. Nothing is sent on its own. ## Approve and send Tap **Approve** when it is done. Mucka shows you the outcome (pass, pass with defects, or fail) and asks you to confirm. Approving **locks the record as a legal document** and generates the PDF. After that it cannot be edited, only corrected. Then tap **Send**. Mucka pre-fills the client from the property and attaches the PDF. Check the message, then send. If there is no email address on the customer's record, Mucka asks you to type one in rather than hiding the option. When you send to an address that isn't on their record yet, Mucka offers to **save it to the client** so it is already there next time — same as sending a quote or an invoice. Tap **Just send** if it is a one-off. ## Need to fix an approved record? You cannot edit a locked record, but you can **create a correction**. That copies it into a fresh draft with a new serial number; once you approve the correction, the original is marked superseded and its PDF carries a "superseded" watermark. The original is never deleted. ## Ask Mucka You can ask Mucka to get one started for you: > *"Log a breakdown record for the boiler at 14 Acacia Avenue."* Mucka opens the draft and links it up, but it never approves or sends a record on its own. Filling in the checks, approving and sending are always your call.