Home › Maintenance › Before You Call a Technician
📋 Free Home Maintenance Checklist

10 Things to Check
Before Calling Anyone

Work through this free home troubleshooting checklist before spending money on a technician. Most common household problems have a simple root cause you can find yourself in under 10 minutes.

⏱ 10 minutes
🔧 No tools required
✅ 10 checks
🆓 Free
Your progress
0 of 10
💡
How to use this checklist
Work through each check in order — they go from simplest to most involved. Tick each one off as you go. If any check identifies your problem, click the guide link for a full DIY repair walkthrough. Most issues are resolved within the first 5 checks.
1
Power & Basic Checks
Under 2 min each
Check the circuit breaker hasn't tripped
Go to your electrical panel and look for any switch that's in the middle or OFF position. Flip it fully off, then back on. A tripped breaker is responsible for roughly 20% of "dead appliance" calls.
Easy 1 min Electrical guides →
Confirm the power cord is fully seated
Unplug and firmly re-plug the appliance. Check for visible damage to the cord. Try a different outlet if possible — the outlet itself may have failed or be controlled by a wall switch.
Easy 1 min
Look for an error code on the display
Most modern appliances show error codes (E1, F3, etc.) when something is wrong. Write down the code and search "[brand] + [error code]" — you'll usually find the exact cause and fix in under 5 minutes.
Easy 1 min
2
Settings & Filters
2–5 min each
Check thermostat settings and replace batteries
For HVAC problems, always start here. Confirm it's set to HEAT or COOL (not AUTO or FAN only), the temperature is set correctly, and the batteries aren't dead. This solves 30% of heating and cooling complaints.
Easy 2 min HVAC guides →
Inspect and clean the appliance filter
A clogged filter is the #1 cause of reduced performance in dishwashers, dryers, HVAC units, and refrigerators. Pull the filter out, rinse it under warm water, and reinstall. Takes 5 minutes and often fully resolves the issue.
Easy 5 min Appliance guides →
Run a full reset cycle
Unplug the appliance for 60 seconds, then plug back in. For HVAC, switch the breaker off for 30 seconds. Many electronic control board faults clear themselves on a cold reset — this is always worth trying before anything else.
Try first 2 min
3
Water & Drainage
5–10 min each
Check water supply valves are fully open
For washing machines, dishwashers, and refrigerators with ice makers — locate the supply valve behind or beneath the unit and confirm it's turned fully counterclockwise (open). A partially closed valve causes slow fills, poor performance, and error codes.
Easy 2 min Plumbing guides →
Inspect the drain hose for kinks or blockages
Pull the appliance out slightly and trace the drain hose to its connection point. Straighten any kinks, check the hose isn't pushed too far into the standpipe (causes siphoning), and clear any visible debris from the end of the hose.
5 min Moderate Drainage guide →
4
Advanced Checks
10+ min — proceed carefully
Check for visible wear on belts, hoses, or seals
With the appliance unplugged, do a visual inspection of accessible components. Look for cracked rubber hoses, worn door seals, frayed belts, or any burned/melted plastic smell. These are signs of a specific part failure rather than a system issue.
Moderate 10 min
Search the exact model number + symptom online
Find your model number (usually inside the door, on the back, or under the lid) and search "[brand] [model] + [your symptom]". Manufacturer service manuals, repair forums, and RepairBlueprint guides are often the fastest path to a confirmed diagnosis before calling anyone.
5 min Part lookup tool →
🎉
Checklist Complete
If none of these checks resolved your problem, you've done the right diagnostic groundwork. Use the guides below to go deeper into your specific system — or use our diagnosis tool to find the exact repair guide for your issue.
Use Diagnosis Tool → All Maintenance Guides
Home Troubleshooting Guides
Still Not Fixed?
Let's Find the Guide.
If the checklist didn't solve it, the problem has a specific cause that needs a targeted home repair guide. Here's how to find it in under 2 minutes.
1
Use the diagnosis tool Select your appliance and describe the symptom — get a matched repair guide instantly.
2
Browse by category Go directly to the system that's giving you trouble — 340+ guides organized by appliance and home system.
3
Search by symptom Type exactly what's happening — "dryer not heating", "AC blowing warm air" — and find the right guide immediately.
Start Diagnosis Tool → Browse All Guides