What if the air handler and heater details do not match my old invoice?
Tell the assessor about the mismatch and keep the records. The current cabinet, heater assembly and power supply need to be checked before parts are chosen.
Record the symptom
Describe the lack of warmth and the normal display message. Bring the invoice or model photograph you already have, and say which details is uncertain. Do not peel off labels or open the cabinet to reconcile conflicting numbers.
If the heater changed during past work, give the date and the work done if known. A former owner’s account can help with the history. It does not prove which parts are installed now.
Plan the access
If a room or cabinet has changed, explain how the unit can be reached now. A new wall or cupboard may block the route. Do not remove it before an access plan is agreed.
When permit history is unclear, the relevant building office can address the property record. St. Lucie County has a specific after-the-fact process for mechanical systems where earlier work lacked the required approval.
Define the repair decision
Ask for a plan that names a heater assembly suited to the model. Include any wiring or control changes. The cabinet’s outside size does not tell you which heater can safely fit inside.
Replacing a failed part is different from adding more heat or changing the wiring. Ask who handles each task. Request a record of the finished work for future repairs or a new owner.
Questions about this repair
Is missing paperwork proof that the heater is unsafe?
No. Missing records and an unsafe condition are different findings. The installation still needs the proper identification and check.