Tradefox Tools
Tools.Quick help on the job.
Free tools for electricians, HVAC and appliance engineers and pool technicians: code look-ups, checkers, calculators and checklists.
ElectricalCodes, loads and the rules for domestic work.
EICREICR code helperWhat C1, C2, C3 and FI mean, how to code an observation, and what a report means for landlords.LandlordsLandlord EICR checkerWhen the next EICR is due and every deadline for tenants, councils and repairs, for England, Wales, Scotland and Northern Ireland.BS 7671RCD type selectorType AC, A, F or B? Pick the equipment on the circuit to see which RCD type BS 7671 calls for.TestingMax Zs lookupMaximum earth fault loop impedance for Type B, C and D breakers and RCDs, with the 80% rule for test readings.Building regsPart P checkerFind out if a domestic electrical job needs notifying to building control in England or Wales.WorkplacePAT testing interval guideHSE’s suggested intervals for user checks, visual inspections and PAT tests, plus a next-test planner.Load checkerExtension lead load checkerAdd up what’s plugged in and check it against the 13 A rating before anything overheats.
HVAC and appliancesFault codes, fault-finding, manuals and planned maintenance.
HVACHVAC error code look-upFault codes for air conditioners, heat pumps and boilers from 20 brands, with what to check.AppliancesAppliance error code look-upWashing machine, dishwasher, oven, dryer and fridge codes from 16 brands.Step by stepTroubleshooting guideAnswer one question at a time to find the likely fault, the fix, and when to stop and call a specialist.ManualsAppliance manuals finderGo straight to each manufacturer’s official manual and support pages, plus where to find the model plate.ChecklistMaintenance checklistPlanned maintenance checklists for split AC, heat pumps, AHUs, boiler rooms, cold rooms and MVHR.
PoolsVolumes, chemical doses and daily to monthly checks.
ChecklistPool maintenance checklistDaily, weekly and monthly pool tasks to tick off, note and share with your manager.CalculatorPool volume calculatorRectangular, round, oval, kidney and L-shaped pools in litres, m³ and gallons.CalculatorPool chemical dosage calculatorChlorine, pH, alkalinity, hardness and stabiliser doses, plus the Langelier index.
Fix it faster.Then practise it in the simulator.
Explore Tradefox coursesNeed a formula? Browse 808 free trade calculators ›
Tools give general guidance only. Isolate before working, follow the manufacturer’s instructions, and leave gas work to Gas Safe registered engineers and refrigerant work to F-gas certified engineers.