Unlicensed Handyman, Thermostats, and a New 120 V Circuit
A property-management company hires a handyman to replace 18 line-voltage and low-voltage thermostats in a 24-unit apartment complex. The handyman is not licensed as an electrician. He replaces the 24 V thermostat cable in six units using 18/4 CL2 cable fished through wall cavities and splices it with wire nuts above the ceiling without a box. In two units he also replaces a 120 V condensate pump and installs a new 20 A dedicated circuit from the panel to a hardwired disconnect. No permit is pulled. A tenant complains of a warm receptacle, and the city inspector visits. The building department has adopted the Michigan Electrical Code, and the complex is not owner-occupied. The property manager says the thermostat work is 'low voltage' and therefore exempt from licensing.
1. Which portions of this work require a permit and a licensed electrical contractor in Michigan?
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The 120 V condensate pump replacement and the new 20 A dedicated circuit clearly require a permit and a licensed electrical contractor; they are line-voltage electrical work and cannot be performed by an unlicensed handyman for hire. The owner-builder exemption does not apply because the complex is not owner-occupied and the work is commercial rental property. The 24 V thermostat control wiring is lower voltage, but 'low voltage' is not a blanket exemption from the Electrical Administrative Act or local permit rules. Some Class 2 thermostat replacements may be handled without a full electrical permit in some jurisdictions, but the installer still must comply with Article 725 and the cable listing, and the local AHJ determines permit requirements. The property manager should not assume all thermostat work is exempt, especially when new cable is fished through walls and spliced above ceilings. The safe answer is to confirm with the local building department before work.
2. Identify the code violations in the thermostat cable installation.
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The 18/4 CL2 cable may be acceptable for a Class 2 thermostat circuit if it is listed for the location, but it must be installed per its listing and Article 725. Fishing cable through wall cavities is generally permitted, but splices above a ceiling with wire nuts and no box are not. Splices must be made in listed, accessible enclosures, and the cable must be supported and protected where required. If the ceiling is a plenum, the cable must be plenum-rated; CL2 may not be enough. The installer also must maintain separation from power conductors and not use the cable as a pull wire. The warm receptacle complaint in the same visit suggests the line-voltage work may have loose terminations, which is a separate fire hazard. The inspector should require removal of the unsupported splices and correction of any termination or box-fill problems.
3. What corrective and enforcement actions should follow the inspection?
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The inspector should issue a stop-work order or citation for the unpermitted and unlicensed electrical work, require the property owner to obtain permits, and require a licensed electrical contractor to correct the line-voltage circuit, condensate pump, and any unsafe terminations. The illegal thermostat splices should be removed and remade in accessible listed boxes, with cable ratings verified for the wall and ceiling locations. The contractor should perform required tests, including GFCI/AFCI protection where applicable and proper bonding, and the AHJ should inspect before energizing. The property manager should be advised that hiring an unlicensed handyman exposes the owner to penalties and liability. The handyman should not continue electrical work. Documentation of the corrected work and inspection results should be retained for the owner and the local enforcing agency.