Good idea. I haven't taken it off yet. I took the bulbs out and they tested good. Kept trickle charger on. Sometimes when starting to first notch...the one red light would come on and alarm sounds..then the next time..nothing..the mower started up as normal...I took battery out and cleaned completely as I do once a year and put 5 aspirin in each cell and on trickle charger...(this battery is original and now 8 years old)...yesterday nothing...I mowed 2 hours...ran as new...I cannot believe it is the battery so will try to trace wires to control box and look under housing and wiggle wires...thanks for your advice.Mave a good look at the wiring for mouse damage.
We see a lot of this at this time when mowers are coming out of storage.
I advise customers to remove the blower housing before storage so the mower is no longer prime real estate.
Some pour camphur oil down the debris screen to discourage them
I will do this. I have found a few connectors and will try what you suggest. I hope to look at my manual today. Thanks!If there are electrical connectors on the devices you are inspecting, then it would be wise to unplug and then re-plug them as you go. Sometimes the brass connectors, which are common to this type machine, corrode during winter storage if there is exposure to humidity or they get washed regularly. The action of disconnecting and reconnecting scrubs this corrosion away and can (may) restore the circuit to normal operation.
If that seems to cure the issue, then you can't stop. You have removed the symptom, but you have not solved the problem. Once connector corrosion starts it will return. You'll need to go back and treat each individual connector with an anti-oxidation compound for electrical connections. There are numerous products offered to do this. I like one called No-Ox-Id by Sanchem available on Amazon. A tablespoon of this stuff will treat 5 mowers.
Hope this helps.